| 释义 |
polarized-vane ammeter polarized-vane ammeter[′pō·lə‚rīzd ‚vān ′am‚ēd·ər] (engineering) An ammeter of only moderate accuracy in which the current to be measured passes through a small coil, distorting the field of a circular permanent magnet, and an iron vane aligns itself with the axis of the distorted field, the deflection being roughly proportional to the current. |